[quote]are there any videos of such tests?[/quote
Not videos, but illustrations:
http://costumegirl.wordpress.com/2010/04/01/t...l-gambeson
The bow testing does not mean much, as the bow is a 45 pound draw, but it is interesting that broadheads fare much better than bodkins. Looking at viking age arrowheads though, it seems a type similar to a bodkin was the most common arrowhead.
The other tests show the gambeson to be fairly resistant, though certainly not proof by any means. One thing I'd say when comparing results to the tests above on the thread - the gambeson fared well when testing against less acutely pointed weapons, those that were more from the 10th-11th centuries. The tests on the thread showed testing against weapons that were a few centuries later in development, the gambeson was less effective agains tthese.
Perhaps that's why in the later middle ages the Jack was more the cheaper armour of choice, and it was often reinforced with metal above and beyond what the ealrier gambeson had?